diff options
Diffstat (limited to 'sys/kern/vfs_vnops.c')
| -rw-r--r-- | sys/kern/vfs_vnops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/kern/vfs_vnops.c b/sys/kern/vfs_vnops.c index d8204b6..7cc09cc 100644 --- a/sys/kern/vfs_vnops.c +++ b/sys/kern/vfs_vnops.c @@ -806,6 +806,8 @@ vn_ioctl(fp, com, data, active_cred, td) case VCHR: case VBLK: if (com == FIODTYPE) { + if (vp->v_rdev == NULL) + return (EOPNOTSUPP); if (vp->v_type != VCHR && vp->v_type != VBLK) return (ENOTTY); *(int *)data = devsw(vp->v_rdev)->d_flags & D_TYPEMASK; |
